Provide %b in #'format; use it for converting between ints and bit vectors. lisp/ChangeLog addition: 2007-12-17 Aidan Kehoe <kehoea@parhasard.net> * subr.el (integer-to-bit-vector): New. * subr.el (bit-vector-to-integer): New. Provide naive implementations using the Lisp reader for these. src/ChangeLog addition: 2007-12-17 Aidan Kehoe <kehoea@parhasard.net> * doprnt.c (emacs_doprnt_1): Add support for formatted printing of both longs and bignums as base 2. * editfns.c (Fformat): Document the new %b escape for #'format. * lisp.h: Make ulong_to_bit_string available beside long_to_string. * lread.c: Fix a bug where the integer base was being ignored in certain contexts; thank you Sebastian Freundt. This is necessary for correct behaviour of #'integer-to-bit-vector and #'bit-vector-to-integer, just added to subr.el * print.c (ulong_to_bit_string): New. Analagous to long_to_string, but used all the time when %b is encountered, since we can't pass that to sprintf. man/ChangeLog addition: 2007-12-17 Aidan Kehoe <kehoea@parhasard.net> * lispref/strings.texi (Formatting Strings): Document %b for binary output.

#define drop_width 16
#define drop_height 16
#define drop_x_hot 6
#define drop_y_hot 4
static unsigned char drop_bits[] = {
   0x00, 0x00, 0xfe, 0x07, 0x02, 0x04, 0x02, 0x04, 0x42, 0x04, 0xc2, 0x04,
   0xc2, 0x05, 0xc2, 0x07, 0xc2, 0x07, 0xc2, 0x0f, 0xfe, 0x1f, 0xc0, 0x07,
   0xc0, 0x06, 0x00, 0x0c, 0x00, 0x1c, 0x00, 0x08};